.login-tab-nav {
    position: relative;
    height: 42px;
    line-height: 40px;
    border-bottom: 1px solid #d5d5d5;
    margin-right: 15px;
    margin-left: 15px;
    margin-top: 20px;
}

.login-tab-nav ul {
    float: left;
}

.login-tab-nav ul li {
    float: left;
    font-size: 20px;
    color: #333;
    width: 110px;
    text-align: center;
    line-height: 40px;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    /*font-weight: 700;加粗*/
    list-style:none;
}

.login-tab-nav ul li.active {
    border-color: #52acca;
    color: #559dba
}

.login-tab-nav a {
    float: right;
    color: #008cdc;
    font-size: 14px
}

@media (max-width: 380px) {
    .login-tab-nav{
        width: 380px;
    }

}
@media (max-width: 768px) {
    .login-tab-nav ul li {
        font-size: 17px;
    }
    .login-tab-nav{
        margin-right: 5px;
        margin-left: 5px;
    }
}
@media (min-width: 768px) {
    .login-tab-nav ul li {
        font-size: 20px;
    }
    .login-tab-nav{
        margin-right: 15px;
        margin-left: 15px;
    }
}
.msg{
    padding: 14px 21px;
    border: 1px solid red;
    margin-bottom: 10px;
    margin-left: 10px;
    margin-right: 10px;
    background-color: #00acc1;
}